In The Big Bang Theory, it was the male characters who were generally more willing to profess loving feelings rather than the women, with Penny in particular being averse to the idea of admitting she was in love. And yet, Penny had more knowledge about relationships and social situations than the rest of her friends.
In this list, we haven’t restricted Penny’s insights about love to romantic moments, and have included friendship related ones as well as comedic quotes to bring in a well-rounded feel to how far-reaching Penny’s thoughts on love were.
“Howard Wolowitz… You Sign Anything She Puts In Front Of You, Because You Are The Luckiest Man Alive.”
Penny tended to mess things up for her own relationships, but she was a whiz when it came to handing out advice to others over their couplings. Case in point was in Season 5, when Howard was feeling annoyed at the prospect of signing a prenuptial agreement.
Penny, knowing that a guy like Howard could never do better than Bernadette (who loved him despite all his faults), handed him some tough love by making it clear that a prenuptial agreement was a small cost for guaranteed lifetime happiness. Seeing as the two remained married till the end, Penny was right for sure.
Penny recognized Leonard’s love for Sheldon even though Leonard would never want to admit it. It took Leonard a long time to call Sheldon his best friend onscreen, but Penny expedited this by pointing it out on numerous occasions.
She would also add in this fact in other occasions as well, as here Leonard wanted to keep wearing an extremely itchy shirt because he didn’t want to admit Sheldon was right about it; Penny chimed in that the fact that Leonard hadn’t ended the annoying person that Sheldon was meant that he actually loved the latter enough to always put up with his craziness.